fix: embedding migration, worker error handling, path traversal security, response mismatches (unread-count, plugins, manifests), frontend type safety

frontend/src/api/notifications.ts

@@ -6,6 +6,17 @@ import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
 import { apiGet, apiPatch, apiDelete } from './client';
 import { PaginatedResponse } from './types';
 
+// ── Types matching backend schemas ──
+
+export interface NotificationItem {
+  id: string;
+  type: string;
+  title: string;
+  body?: string | null;
+  read_at?: string | null;
+  created_at?: string | null;
+}
+
 export interface NotificationTypeItem {
   type_key: string;
   plugin_name: string;
@@ -16,17 +27,29 @@ export interface NotificationTypeItem {
   is_enabled: boolean;
 }
 
+export interface UnreadCountResponse {
+  count: number;
+}
+
+export interface NotificationPreferenceItem {
+  type_key: string;
+  is_enabled: boolean;
+}
+
 export function useNotifications() {
   return useQuery({
     queryKey: ['notifications'],
-    queryFn: () => apiGet<PaginatedResponse<any>>('/notifications'),
+    queryFn: () => apiGet<PaginatedResponse<NotificationItem>>('/notifications'),
   });
 }
 
 export function useUnreadNotificationCount() {
   return useQuery({
     queryKey: ['notifications', 'unread-count'],
-    queryFn: () => apiGet<number>('/notifications/unread-count'),
+    queryFn: async () => {
+      const data = await apiGet<UnreadCountResponse>('/notifications/unread-count');
+      return data.count;
+    },
   });
 }
 
@@ -60,7 +83,7 @@ export function useNotificationTypes() {
 export function useNotificationPreferences() {
   return useQuery({
     queryKey: ['notification-preferences'],
-    queryFn: () => apiGet<{ items: { type_key: string; is_enabled: boolean }[] }>('/notifications/preferences'),
+    queryFn: () => apiGet<{ items: NotificationPreferenceItem[] }>('/notifications/preferences'),
   });
 }